clipped from: www.scientificamerican.com   

Scratch 'n Sniff: A Guide to Cats and Dogs

How did house cats evolve? Can dogs talk? Why do cats purr? Find out, in our definitive report on the science of our best friends

  • Fact or Fiction: Dogs Can Talk
    Are human speech-like vocalizations made by some mammals equivalent to conversation--or just a rough estimation of it?
  • Veterinarians Unleash Probiotics to Ease Doggie Discomfort
    A growing number of veterinarians are prescribing supplements of friendly bacteria for dogs, but is there enough scientific evidence to justify it?
  • Are Dog Breeds Actually Different Species?
    A humorous take on using dog breeds to prove evolution
  • The Evolution of House Cats
    Genetic and archaeological findings hint that wildcats became house cats earlier--and in a different place--than previously thought
    • Dogs' Bark
    The Truth about Cats and Dogs
    Cat Fleas Abhor A Vacuum
    Veggie Cat Food? Why Not All Cats Need Meat
    Why do cats have an inner eyelid as well as outer ones?